Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. David Hugh Warden, M.D.

Nephrology Physician in St Paul, MN · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1548227739

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Registry record

Entity type Individual (Type 1)

Name Mr. David Hugh Warden

Credential M.D.

Sex Male

Practice address 360 Sherman St., Suite 250, St Paul, MN, 55102

Phone (651) 772-6251

Fax (651) 224-9661

Enumeration date May 1, 2006

Last updated in NPPES Apr 28, 2021

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 35992 (MN) Secondary

207RN0300X Nephrology Physician Allopathic & Osteopathic Physicians · License 35992 (MN) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
125772200	Medicaid	MN	-

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1548227739 active?

Yes, as of the latest NPPES snapshot, NPI 1548227739 is active (record last updated 2021-04-28).

How do I verify David Warden's NPI record?

Cross-check NPI 1548227739 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-04-28.